package com.atguigu.gulimall.product.service.impl;

import com.alibaba.fastjson.TypeReference;
import com.atguigu.common.constant.ProductConstant;
import com.atguigu.common.to.SkuHasStockTo;
import com.atguigu.common.to.SkuReductionTo;
import com.atguigu.common.to.SpuBoundTo;
import com.atguigu.common.to.es.SkuEsModel;
import com.atguigu.common.utils.R;
import com.atguigu.gulimall.product.entity.*;
import com.atguigu.gulimall.product.feign.CouponFeignService;
import com.atguigu.gulimall.product.feign.SearchFeignService;
import com.atguigu.gulimall.product.feign.WareFeignService;
import com.atguigu.gulimall.product.service.*;
import com.atguigu.gulimall.product.vo.*;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.math.BigDecimal;
import java.util.*;
import java.util.stream.Collectors;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.atguigu.common.utils.PageUtils;
import com.atguigu.common.utils.Query;

import com.atguigu.gulimall.product.dao.SpuInfoDao;
import org.springframework.transaction.annotation.Transactional;


@Service("spuInfoService")
public class SpuInfoServiceImpl extends ServiceImpl<SpuInfoDao, SpuInfoEntity> implements SpuInfoService {

	@Autowired
	SpuInfoDescService spuInfoDescService;

	@Autowired
	SpuImagesService imagesService;

	@Autowired
	AttrService attrService;

	@Autowired
	ProductAttrValueService attrValueService;

	@Autowired
	SkuInfoService skuInfoService;

	@Autowired
	SkuImagesService skuImagesService;

	@Autowired
	BrandService brandService;

	@Autowired
	CategoryService categoryService;

	@Autowired
	SkuSaleAttrValueService skuSaleAttrValueService;

	@Autowired
	CouponFeignService couponFeignService;

	@Autowired
	WareFeignService wareFeignService;

	@Autowired
	SearchFeignService searchFeignService;

	@Override
	public PageUtils queryPage(Map<String, Object> params) {
		IPage<SpuInfoEntity> page = this.page(
				new Query<SpuInfoEntity>().getPage(params),
				new QueryWrapper<SpuInfoEntity>()
		);

		return new PageUtils(page);
	}

	@Transactional
	@Override
	public void saveSpuInfo(SpuSaveVo vo) {
		//1.保存spu基本信息	pms_spu_info
		SpuInfoEntity infoEntity = new SpuInfoEntity();
		BeanUtils.copyProperties(vo, infoEntity);
		infoEntity.setCreateTime(new Date());
		infoEntity.setUpdateTime(new Date());
		this.saveBaseSpuInfo(infoEntity);
		//2.保存spu的描述图片 pms_spu_info_desc
		List<String> decript = vo.getDecript();
		SpuInfoDescEntity descEntity = new SpuInfoDescEntity();
		descEntity.setSpuId(infoEntity.getId());
		descEntity.setDecript(String.join(",", decript));
		spuInfoDescService.saveSpuInfoDesc(descEntity);


		//3.保存spu的图片集 pms_spu_images
		List<String> images = vo.getImages();
		imagesService.saveImages(infoEntity.getId(), images);

		//4.保存spu的规格参数 pms_product_attr_value
		List<BaseAttrs> baseAttrs = vo.getBaseAttrs();
		List<ProductAttrValueEntity> collect = baseAttrs.stream().map((item) -> {
			ProductAttrValueEntity valueEntity = new ProductAttrValueEntity();
			valueEntity.setAttrId(item.getAttrId());
			AttrEntity attr = attrService.getById(item.getAttrId());
			valueEntity.setAttrName(attr.getAttrName());
			valueEntity.setAttrValue(item.getAttrValues());
			valueEntity.setQuickShow(item.getShowDesc());
			valueEntity.setSpuId(infoEntity.getId());
			return valueEntity;
		}).collect(Collectors.toList());
		attrValueService.saveProductAttr(collect);

		//保存spu的积分信息，sms_spu_bounds
		Bounds bounds = vo.getBounds();
		SpuBoundTo spuBoundTo = new SpuBoundTo();
		BeanUtils.copyProperties(bounds,spuBoundTo);
		spuBoundTo.setSpuId(infoEntity.getId());
		R r = couponFeignService.saveSpuBounds(spuBoundTo);
		if (r.getCode()!=0 ){
			log.error("远程保存spu积分信息失败！");
		}
		//5.保存当前spu对应的所有sku信息
		List<Skus> skus = vo.getSkus();
		if (skus != null && skus.size() > 0) {
			skus.forEach(item -> {
				String defaultImg = "";
				for (Images image : item.getImages()) {
					if (image.getDefaultImg() == 1) {
						defaultImg = image.getImgUrl();
					}
				}
				// private String skuName;
				// private BigDecimal price;
				// private String skuTitle;
				// private String skuSubtitLe;
				SkuInfoEntity skuInfoEntity = new SkuInfoEntity();
				BeanUtils.copyProperties(item, skuInfoEntity);
				skuInfoEntity.setBrandId(infoEntity.getBrandId());
				skuInfoEntity.setCatalogId(infoEntity.getCatalogId());
				skuInfoEntity.setSaleCount(0L);
				skuInfoEntity.setSpuId(infoEntity.getId());
				skuInfoEntity.setSkuDefaultImg(defaultImg);
				//5.1、sku的基本信息 pms_sku_info
				skuInfoService.saveSkuInfo(skuInfoEntity);

				Long skuId = skuInfoEntity.getSkuId();

				List<SkuImagesEntity> imagesEntities = item.getImages().stream().map((img) -> {
					SkuImagesEntity skuImagesEntity = new SkuImagesEntity();
					skuImagesEntity.setSkuId(skuId);
					skuImagesEntity.setImgUrl(img.getImgUrl());
					return skuImagesEntity;
				}).filter((entity)->{
					//返回true就是需要，false就是剔除
					return !StringUtils.isEmpty(entity.getImgUrl());
				}).collect(Collectors.toList());
				//5.2、sku的图片信息 pms_sku_images
				//TODO 没有图片路径的无需保存
				skuImagesService.saveBatch(imagesEntities);

				List<Attr> attr = item.getAttr();
				List<SkuSaleAttrValueEntity> skuSaleAttrValueEntities = attr.stream().map((a) -> {
					SkuSaleAttrValueEntity attrValueEntity = new SkuSaleAttrValueEntity();
					BeanUtils.copyProperties(a, attrValueEntity);
					attrValueEntity.setSkuId(skuId);
					return attrValueEntity;
				}).collect(Collectors.toList());
				//5.3、sku的销售属性：pms_sku_sale_attr_value
				skuSaleAttrValueService.saveBatch(skuSaleAttrValueEntities);


				//5.4、sku的优惠、满减等信息； sms_sku_ladder\sms_sku_full_reduction\sms_member_price
				SkuReductionTo skuReductionTo = new SkuReductionTo();
				BeanUtils.copyProperties(item,skuReductionTo);
				skuReductionTo.setSkuId(skuId);
				if (skuReductionTo.getFullCount() >0 || skuReductionTo.getFullPrice().compareTo(new BigDecimal("0")) == 1){
					R r1 = couponFeignService.saveSkuReduction(skuReductionTo);
					if (r1.getCode()!=0 ){
						log.error("远程保存spu优惠信息失败！");
					}
				}

			});
		}
	}

	@Override
	public void saveBaseSpuInfo(SpuInfoEntity infoEntity) {
		this.baseMapper.insert(infoEntity);
	}

	@Override
	public PageUtils queryPageByCondition(Map<String, Object> params) {
		QueryWrapper<SpuInfoEntity> wrapper = new QueryWrapper<>();

		String key = (String) params.get("key");
		if (!StringUtils.isEmpty(key)){
			wrapper.and((w)->{
				w.eq("id",key).or().like("spu_name",key);
			});
		}

		/***
		 * status
		 * key
		 * brandId
		 * catalogId
		 */
		String status = (String) params.get("status");
		if (!StringUtils.isEmpty(status)){
			wrapper.eq("publish_status",status);
		}

		String brandId = (String) params.get("brandId");
		if (!StringUtils.isEmpty(brandId)){
			wrapper.eq("brand_id",brandId);
		}

		String catalogId = (String) params.get("catalogId");
		if (!StringUtils.isEmpty(catalogId)){
			wrapper.eq("catalog_id",catalogId);
		}

		IPage<SpuInfoEntity> page = this.page(
				new Query<SpuInfoEntity>().getPage(params),
				wrapper
		);
		return new PageUtils(page);
	}

	@Override
	public SpuInfoEntity getSpuInfoSkuId(Long skuId) {
		SkuInfoEntity byId = skuInfoService.getById(skuId);
		Long spuId = byId.getSpuId();
		SpuInfoEntity spuInfoEntity = getById(spuId);
		return spuInfoEntity;
	}

	//商品上架
	@Override
	public void up(Long spuId) {
		// 1 查出当前spuid对应的所有sku信息，品牌的名字
		List<SkuInfoEntity> skus = skuInfoService.getSkusBySpuId(spuId);
		List<Long> skuIdList = skus.stream().map(SkuInfoEntity::getSkuId).collect(Collectors.toList());

		// TODO 4 查询当前sku的所有可以被用来检索的规格属性
		List<ProductAttrValueEntity> baseAttrs = attrValueService.baseAttrlistforspu(spuId);
		List<Long> attrIds = baseAttrs.stream().map(attr -> {
					return attr.getAttrId();
				}
		).collect(Collectors.toList());
		List<Long> searchAttrIds = attrService.selectSearchAttrIds(attrIds);
		//转为Set,使用set的contains进行匹配性能更好
		Set<Long> idSet = new HashSet<>(searchAttrIds);
		List<SkuEsModel.Attrs> attrsList = baseAttrs.stream().filter(item -> {
			return idSet.contains(item.getAttrId());
		}).map(item -> {
			SkuEsModel.Attrs attrs1 = new SkuEsModel.Attrs();
			BeanUtils.copyProperties(item, attrs1);
			return attrs1;
		}).collect(Collectors.toList());
		// TODO 1 发送远程调用，库存系统查询是否有库存
		Map<Long,Boolean> hasStockMap = null;
		try {
			R r = wareFeignService.getSkuHasStock(skuIdList);
			hasStockMap = r.getData(new TypeReference<List<SkuHasStockTo>>(){}).stream().collect(Collectors.toMap(SkuHasStockTo::getSkuId, item -> item.getHasStock()));
		} catch (Exception e) {
			log.error("库存服务查询异常原因: {}",e);
		}

		// 2 封装每个sku的信息
		Map<Long, Boolean> finalStockMap = hasStockMap;
		List<SkuEsModel> upProducts = skus.stream().map(sku -> {
			// 组装需要的数据
			SkuEsModel esModel = new SkuEsModel();
			BeanUtils.copyProperties(sku,esModel);
			esModel.setSkuPrice(sku.getPrice());
			esModel.setSkuImg(sku.getSkuDefaultImg());

			if (finalStockMap == null) {
				esModel.setHasStock(true);
			} else {
				esModel.setHasStock(finalStockMap.get(sku.getSkuId()));
			}
			// TODO 热度评分
			esModel.setHotScore(0L);
			// TODO 3 查询品牌和查询分类的名字信息
			BrandEntity brand = brandService.getById(esModel.getBrandId());
			esModel.setBrandName(brand.getName());
			esModel.setBrandImg(brand.getLogo());
			CategoryEntity category = categoryService.getById(esModel.getCatalogId());
			esModel.setCatalogName(category.getName());

			// 设置检索属性
			esModel.setAttrs(attrsList);

			return esModel;
		}).collect(Collectors.toList());

		// TODO 5 将数据发送到es进行保存：gulimall-search
		R r = searchFeignService.productStatusUp(upProducts);
		if (r.getCode() == 0) {
			//  远程调用成功
			// TODO 6 修改当前的spu的状态
			baseMapper.updateSpuState(spuId, ProductConstant.StatusEnum.SPU_UP.getCode());
		} else {
			// 远程调用失败
			// 重复调用？接口幂等性

		}

	}


}
